/* �ֲ� */
.carousel {
    margin-top: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}
.carousel-inner {
    max-height: 400px; /* �����ֲ��߶� */
}
.carousel-inner img {
    width: 100%;
    object-fit: cover;
}
.carousel-control {
    width: 5%;
    background-image: none !important;
}
.carousel-indicators {
    bottom: -40px;
}
.carousel-indicators li {
    background-color: #666;
    border: none;
}
.carousel-indicators .active {
    background-color: #002366;
}

/* �����Ƽ� */
.mt-4 {
    margin-top: 2rem;
}
/* ȥ��Ԥ��ͼ�ı߿� */
.thumbnail {
    border: none;
    box-shadow: none;
    padding: 0;
    transition: all 0.3s ease; /* ��ӹ���Ч�� */
}
/* ��һ����С�����Ƽ�ͼƬ */
.thumbnail img {
    width: 60%; /* ��СͼƬ��� */
    height: auto;
    margin: 0; /* ȷ��ͼƬ���� */
    transition: all 0.3s ease; /* ΪͼƬ��ӹ���Ч�� */
}
/* ��һ����С�����Ƽ����� */
.thumbnail .caption h4 {
    font-size: 14px; /* ��С�������� */
    color: #3498db; /* ��ɫ����ɫ */
}
.thumbnail .caption p {
    font-size: 12px; /* ��С�������� */
    color: #3498db; /* ��ɫ����ɫ */
}
/* ȥ���е��ڱ߾� */
.col-md-4,
.col-sm-6 {
    padding-left: 5px;
    padding-right: 5px;
}
/* ȥ���еĸ��߾�Ӱ�� */
.row {
    margin-left: -5px;
    margin-right: -5px;
}
/* �������ʽ */
.sidebar {
    background-color: #f8f9fa;
    padding: 20px;
    border: 1px solid #3498db; /* ��ɫ�߿� */
    border-radius: 5px;
    text-align: center;
    margin-top: 35px; /* �����߾࣬ʹ���ϱ߿��������Ƽ��»��߶��� */
}
/* �û�ͷ����ʽ */
.user-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 15px;
    overflow: hidden;
}
.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
/* �����ͣʱֻ��ͼƬ��Ч�� */
.thumbnail img:hover {
    transform: scale(1.05); /* �Ŵ�Ч�� */
    box-shadow: 0 0 10px rgba(52, 152, 219, 0.5); /* ��ɫ��Ӱ */
}
/* �����Ƽ����⿿�Ҳ�����»��� */
.col-md-9 h3 {
    text-align: left;
    border-bottom: 1px solid #3498db;
    padding-bottom: 5px;
    margin-bottom: 20px; /* ��ӵײ���߾࣬���������� */
}
/* �������Ƽ����忿�� */
.col-md-9 {
    text-align: left;
}
/* ȷ���������е�ͼƬҲ���� */
.thumbnail a.thumbnail-link {
    display: block;
    text-align: left;
}
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 12px 24px;
    border-radius: 4px;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; bottom: 0; }
    to { opacity: 1; bottom: 20px; }
}